N,N,N',N'-Tetramethylethylenediamine → HCID 89962427, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-methylpyrazole (9.34 g, 114 mmol) and N,N,N′,N′-tetramethylethylenediamine (17.1 mL, 114 mmol) in THF (300 mL), butyl lithium (1.63 M solution in hexane; 81.7 mL, 133 mmol) was added at −78° C. The reaction solution was stirred at −78° C. for 30 minutes. Then, cyclohexene oxide (13.9 mL, 137 mmol) was added thereto, and the mixture was stirred at room temperature for 15 hours. To the reaction solution, water (1 L) was added, followed by extraction with ethyl acetate (500 mL). The thus obtained organic layer was dried over anhydrous sodium sulfate. After vacuum concentration, the residue was purified with silica gel chromatography (ethyl acetate) to yield the title compound (11.2 g, 55%) as a colorless solid.

Provenance & Evidence